The bugaboos in larger versions of this optimistic vision are highly variable flows of material, and decentralized, dilute concentrations of reclaimable stuff.
这个乐观观点的描述最多的，莫过于高变异性的物质流动，以及可回收物质密度的分散和稀释。
Flow variable
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Stock and flow
Economics, business, accounting, and related fields often distinguish between quantities that are stocks and those that are flows. These differ in their units of measurement. A stock variable is measured at one specific time, and represents a quantity existing at that point in time (say, December 31, 2004), which may have accumulated in the past. A flow variable is measured over an interval of time. Therefore a flow would be measured per unit of time (say a year). Flow is roughly analogous to rate or speed in this sense.
- separating of manifolding sets的意思
- separating of materials produced by deep well的意思
- separating of materials produced by deep wells的意思
- separating of materials produced by the deep wells的意思
- separating of oil的意思
- SEPARATING of sewage的意思
- SEPARATING of sewage in sewage purification plants的意思
- SEPARATING of sheets from piles的意思
- SEPARATING of solids by dry methods的意思
- SEPARATING of solids by dry methods using pneumatic tables or jigs的意思
- SEPARATING of solids by using liquids的意思
- separating of suction dredgers的意思
- SEPARATING of tickets的意思
- SEPARATING of tobacco的意思
- separating oily substances from SEWAGE的意思
- separating or indenting STITCHING in footwear的意思
- separating or screening SEWAGE的意思
- SEPARATING or sorting of different materials的意思
- separating out的意思
- separating paper的意思
- separating partition的意思
- separating plane的意思
- separating plant的意思
- separating plastics, metal的意思
- separating plate的意思